Frictionless Entry Into Combined Merchant Loyalty Program

5. The method as claim 1 recites, wherein each of the first item, the second item, the third item, the fourth item, and the fifth item comprise at least one of a good or a service.

10. The system as claim 9 recites, wherein the customer is enrolled independent of whether the fifth item is complementary to any item offered for sale by the second merchant or the third merchant.

13. The system as claim 12 recites, wherein at least one of the first credit or the second credit comprises at least one of one or more loyalty points, one or more reward points, a coupon, or a discount redeemable in one or more future transactions.

14. The system as claim 12 recites, wherein at least one of issuing the first credit or issuing the second credit comprises at least one of causing the first credit or the second credit, respectively, to be stored in association with a customer profile associated with the customer or sending the first credit or the second credit, respectively, to the customer via an electronic communication.

15. The system as claim 9 recites, wherein the third merchant of the plurality of merchants receives payment processing services by an entity other than the payment processing service.

17. The one or more non-transitory computer-readable media as claim 16 recites, wherein each of the first item, the second item, the third item, and the fourth item comprise at least one of a good or a service.

20. The one or more non-transitory computer-readable media as claim 18 recites, wherein determining that the first merchant and the second merchant are complementary merchants is further based at least in part on one or more of clientele of the respective merchants.